<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>掏抢购</title>
    <link rel="stylesheet" href="css.css">
</head>
<body>
<h2>掏抢购</h2>
<img  class="ll" src="img/r1.png" alt="">
<button id="btn">换一换</button>
<hr>
<div id="list"></div>

<script src="script.js"></script>
</body>
</html>